Skin resistance probe



FIG. 1 is a perspective view of a skin resistance probe, showing my newdesign;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a side elevational view thereof; and

FIG. 5 is a top plan view thereof.

The ornamental design for a skin resistance probe, substantially asshown.